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प्रश्न
Name the terms for the particles of matter which may or may not have independent existence.
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उत्तर
this criteria is shown by atoms of any matter which may exist alone (like helium) or may not exist alone and exist in molecular form (like oxygen/o₂ )
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संबंधित प्रश्न
Select the correct alternative
The molecules can move freely anywhere in
- gases
- liquids
- solids
- none of the above
What is the scientific name of particles which make up mater?
Honey is more viscous than water. Can you suggest why?
When extremely small particles X derived from the anther of a flower were suspended in a liquid Y and observed through a microscope, it was found that the particles X were moving throughout the liquid Y in a very zig-zag way. It was also observed that warmer the liquid Y, faster the particles X moved on its surface.
- What could particles X be ?
- What do you think liquid Y is ?
- What is the zig-zag movement of X known as ?
- What is causing the zig-zag movement of particles X ?
- Name the scientist who discovered this phenomenon.
- What does this experiment tell us about the nature of liquid Y?
What is the other name for impure substances ? Give two examples of impure substances.
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(b) Which liquid could be a mixture ? Name this mixture.
(c) Which liquid could be a compound ? Name this compound.
(d) What could the solid D be ?
(e) What do you think is liquid E ?
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Which of the following contains less solute at a given temperature and pressure ? Unsaturated solution or Saturated solution.
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The material which is added to water during purification process at the water works so as to disinfect it is :
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From what substance has the potter made all the things?
Diffentiate between absorption and adsorption.
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